package com.heima.media.service.impl;

import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.heima.common.dto.PageResponseResult;
import com.heima.common.dto.ResponseResult;
import com.heima.common.dto.User;
import com.heima.common.enums.AppHttpCodeEnum;
import com.heima.common.minio.MinIOService;
import com.heima.common.util.UserThreadLocalUtil;
import com.heima.media.dto.WmMaterialDto;
import com.heima.media.entity.WmMaterial;
import com.heima.media.mapper.WmMaterialMapper;
import com.heima.media.service.IWmMaterialService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.util.Date;

/**
 * <p>
 * 自媒体图文素材信息表 服务实现类
 * </p>
 *
 * @author syl
 * @since 2021-11-03
 */
@Service
public class WmMaterialServiceImpl extends ServiceImpl<WmMaterialMapper, WmMaterial> implements IWmMaterialService {

    // 注入MinIOService
    @Autowired
    private MinIOService minIOService;

    @Override
    public ResponseResult upload(MultipartFile file) {
        // 从本地线程中获取当前的用户id
        User user = UserThreadLocalUtil.get();
        if (user == null) {
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        try {
            // 调用minio上传图片
            // 返回图片的url
            String url = minIOService.upload(file);
            // 保存素材表
            WmMaterial material = new WmMaterial();
            material.setUserId(user.getUserId());
            material.setUrl(url);
            material.setType(0);
            material.setIsCollection(false);
            material.setCreatedTime(new Date());
            this.save(material);
            return ResponseResult.okResult(material);

        } catch (Exception e) {
            e.printStackTrace();
            return ResponseResult.errorResult(AppHttpCodeEnum.SERVER_ERROR);
        }
    }

    @Override
    public ResponseResult list(WmMaterialDto dto) {
        //获取当前用户的id
        User user = UserThreadLocalUtil.get();
        if (user==null){
            return ResponseResult.errorResult(AppHttpCodeEnum.NEED_LOGIN);
        }
        //构造查询条件
        LambdaQueryWrapper<WmMaterial> queryWrapper =new LambdaQueryWrapper<>();
        //判断是否传入了收藏状态
        if (dto.getIsCollection()!=null){
            queryWrapper.eq(WmMaterial::getIsCollection,dto.getIsCollection());

        }
        // 隐藏条件: 当前用户只能查询自己的图片
        queryWrapper.eq(WmMaterial::getUserId, user.getUserId());
        // 对结果进行排序,根据创建时间倒序排列
        queryWrapper.orderByDesc(WmMaterial::getCreatedTime);
        // 构建分页条件
        IPage<WmMaterial> page = new Page<>(dto.getPage(), dto.getSize());
        // 分页查询
        IPage<WmMaterial> iPage = this.page(page, queryWrapper);
        // 构建通用的分页响应
        return new PageResponseResult(dto.getPage(), dto.getSize(),
                iPage.getTotal(), iPage.getRecords());
    }
}
